Warning: mysql_connect() [function.mysql-connect]: Access denied for user ‘linuxnoo’@'localhost’ (using password: YES) in /tmp/cpanel_phpengine.1304688239.24500MvupN_eQWd on line 1642
Access denied for user ‘linuxnoo’@'localhost’ (using password: YES)

This issue is caused by a mismatch in the cPanel password and the MySQL users password. You can verify this in SSH by running the following.

mysql> use mysql;
mysql> select user,password,password('YourPassword') from user where user='YourCpanelUser';
+----------+-----------------------------+-----------------------+
| user     | password  | password('--')          |
+----------+-----------------------------+-----------------------+
| linuxnoo | *E6.....3F | *B6.....3A |
+----------+-----------------------------+-----------------------+
2 rows in set (0.00 sec)

As you can see above, the two password fields do not match so we need to update this.

mysql> update user set password=password('bNEQL13dvJ') where user='linuxnoo' limit 2;
mysql> select user,password,password('bNEQL13dvJ') from user where user='linuxnoo';
+----------+-------------------------------------------+-------------------------------------------+
| user     | password                                  | password('bNEQL13dvJ')                    |
+----------+-------------------------------------------+-------------------------------------------+
| linuxnoo | *E6D911C8973EEDDA0CE0618EFB493E704776DB3F | *E6D911C8973EEDDA0CE0618EFB493E704776DB3F |
+----------+-------------------------------------------+-------------------------------------------+
2 rows in set (0.00 sec)

After the password update try to install again and it should work just fine.

root@grumpy [/]# cd /usr/local/src
root@grumpy [/usr/local/src]# wget http://nginxcp.com/latest/nginxadmin.tar
root@grumpy [/usr/local/src]# tar xf nginxadmin.tar
root@grumpy [/usr/local/src]# cd publicnginx
root@grumpy [/usr/local/src/publicnginx]# ./nginxinstaller install

The uninstall is just as simple.

root@grumpy [/]# cd /usr/local/src
root@grumpy [/usr/local/src]# wget http://nginxcp.com/latest/nginxadmin.tar
root@grumpy [/usr/local/src]# tar xf nginxadmin.tar
root@grumpy [/usr/local/src]# cd publicnginx
root@grumpy [/usr/local/src/publicnginx]# ./nginxinstaller uninstall

Unfortunately things didn’t go smooth on the first install, and I ran into a few errors which were caused by an out of date python install.

root@grumpy [/usr/local/src]# tar xf nginxadmin2.6-stable.tar
root@grumpy [/usr/local/src]# cd publicnginx
root@grumpy [/usr/local/src/publicnginx]# ./nginxinstaller install
Welcome to the Nginx Admin installer......Starting Install
Generating vhosts...
Traceback (most recent call last):
File "/scripts/createvhosts.py", line 2, in ?
import yaml
File "/usr/lib/python2.4/site-packages/PyYAML-3.10-py2.4-linux-i686.egg/yaml/__init__.py", line 26
SyntaxError: 'yield' not allowed in a 'try' block with a 'finally' clause
Installing WHM interface...
deploying booster rockets
Traceback (most recent call last):
File "/usr/local/src/publicnginx/nginxinstaller2", line 9, in ?
import createvhosts
File "/usr/local/src/publicnginx/createvhosts.py", line 2, in ?
import yaml
File "/usr/lib/python2.4/site-packages/PyYAML-3.10-py2.4-linux-i686.egg/yaml/__init__.py", line 26
SyntaxError: 'yield' not allowed in a 'try' block with a 'finally' clause

To fix this error, you need to do the following.

remove nginx (instructions at the bottom of the post)
root@grumpy [/usr/local/src]# wget http://www.python.org/ftp/python/2.5.2/Python-2.5.2.tgz
root@grumpy [/usr/local/src]# tar fxz Python-2.5.2.tgz
root@grumpy [/usr/local/src]# cd Python-2.5.2
root@grumpy [/usr/local/src]# ./configure
root@grumpy [/usr/local/src]# make
root@grumpy [/usr/local/src]# make install
root@grumpy [/usr/local/src]# fresh install

if you run into this:

Restarting nginx daemon: nginxRemaining processes: 16560
cat: /var/run/nginx.pid: No such file or directory
kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec … or kill -l [sigspec]
not running

root@grumpy [/usr/local/src/publicnginx]# killall -9 nginx
root@grumpy [/usr/local/src/publicnginx]# ./nginxinstaller uninstall
root@grumpy [/usr/local/src/publicnginx]# ./nginxinstaller install

If you run into any issues, please feel free to post below in the comments.

Nearly everything that you can do in the WHM backend can be performed via command line.  These scripts are located in your server’s /scripts/ directory.  Only use scripts that have been verified by cPanel, or that you know yourself are safe as an unsafe script may damage your server.

Long list of scripts after the break…

To use any of these scripts, prefix it with /scripts/, for example, to package an account for backup you would type:

/scripts/pkgacct accountusernamehere (replacing that with the account name on your server that you wish to backup)

• build_maxemails_config — Sets limits on the amount of email that users can send from domains on your server. For more information about configuring limits with this script, see our documentation here.
• easyapache — Upgrades and reinstalls Apache.
• phpextensionmgr — Manages PHP extensions.
• *up— Updates a service. We currently provide the following update scripts for the services noted:
  • bandminup — Bandmin application.
  • courierup — Courier mail server.
  • cpaddonsup — cPanel’s addon scripts.
  • dovecotup — Dovecot mail server.
  • eximup — Exim mail exchanger.
  • ftpup — FTP servers (ProFTP and Pure-FTP).
  • imapup — IMAP mail server.
  • mysqlup —MySQL service.
  • nsdup — BIND nameserver.
  • phpup — Current version of PHP.
  • suphpup — SuPHP tool for handling PHP requests.
• restartsrv_* — Restarts a service. We currently provide restart scripts for the following; simply replace the asterisk (*) in restartsrv_*with the term in bold:
  • apache — Apache web server.
  • bind — BIND nameserver software.
  • chkservd — cPanel’s TailWatch log processing service.
  • clamd — ClamAV anti-virus software.
  • courier — Courier mail server.
  • cpdavd — cPanel’s WebDAV server.
  • cppop — cPanel’s POP server.
  • dovecot — Dovecot mail server.
  • entropychat — Entropy chat client.
  • exim — Exim mail exchanger.
  • eximstats — Exim mail statistics tracker.
  • ftpserver — FTP server.
  • httpd — Apache web server.
  • imap — IMAP server.
  • inetd — Super-server daemon for managing Internet services.
  • interchange — Interchange e-commerce software.
  • ipaliases — IP aliasing software.
  • melange — Melange chat client.
  • mysql — MySQL database server.
  • named — BIND nameserver software.
  • nsd — Open-source NSD nameserver daemon.
  • postgres — PostgresSQL database service.
  • postgresql — PostgreSQL database service.
  • proftpd — ProFTP server daemon.
  • pureftpd — Pure-FTP server daemon.
  • rsyslogd — Open-source log forwarder daemon.
  • spamd — Spam-deferral daemon.
  • sshd — Secure shell daemon.
  • syslogd — Log forwarder daemon.
  • tailwatchd — cPanel’s TailWatch log processing service.
  • tomcat — Apache Tomcat service.
  • xinetd — Open-source super-server daemon.
• addpop — Adds a POP account.
• delpop — Removes a POP account.
• wwwacct — Adds a cPanel account.
• killpkg — Removes a package.
• restorepkg — Restores a package.
• cpbackup — Backs up all accounts.
• pkgacct — Handles cPanel packages.
• upcp — Updates cPanel and WHM.
• setupmailserver — Allows you to switch between mailservers.
• setupftpserver — Allows you to switch between FTP servers.
• setupnameserver — Allows switching between DNS servers.
• checkperlmodules— Contains a list of standard CPAN modules to install on cPanel servers. This script is used in conjunction with realperlinstaller, below. This script can be used with the following arguments:
  • –force will reinstall everymodule regardless of whether or not it is working.
  • –full will ensure that all modules are present as opposed to only checking for essential modules.
• realperlinstaller — A wrapper script that automates the installation of Perl CPAN modules.
• suspendacct — Suspends an account.
• unsuspendacct — Unsuspends an account.
• runweblogs — Updates statistics for a user.
• runstatsonce — Updates statistics for all users.
• makecppphp — Re-installs cPanel’s internal PHP.
• portsup — Updates ports (FreeBSD® systems only).

Have any questions about any of these commands, what they are or what they do, don’t hesitate to leave a comment and we’ll get back to you!

root@ohhai [~]# wget http://layer1.cpanel.net/perl588installer.tar.gz
root@ohhai [~]# tar -xvzf perl588installer.tar.gz
root@ohhai [~]# cd perl588installer
root@ohhai [~]# ./install

If I remember correctly, the install takes 25-30 minutes to complete depending on your server setup.

Internal Server Error

User ‘useraccount’ is over quota.

This happens when the users ‘overquota’ status is cached and can be fixed by removing the users folder located at the following.

/var/cpanel/overquota/username

Note: Cannot open TUN/TAP dev /dev/net/tun: Permission denied (errno=13)
Note: Attempting fallback to kernel 2.2 TUN/TAP interface
Cannot open TUN/TAP dev /dev/tun0: No such file or directory (errno=2)

I’ve never run into this issue before, but was able to find an awesome tutorial on the OpenVZ website.

First, make sure the tun module has been already loaded on the hardware node:

# lsmod | grep tun

If it is not there, use the following command to load tun module:

# modprobe tun

To make sure that tun module will be automatically loaded on every reboot you can also add it or into /etc/modules.conf (on RHEL see /etc/sysconfig/modules/ directory) or into /etc/sysconfig/vz-scripts/VEID.mount.

echo 'modprobe tun' /etc/sysconfig/vz-scripts/VEID.mount

Allow your container to use the tun/tap device by running the following commands on the host node:

vzctl set VEID --devices c:10:200:rw --save
vzctl set VEID --capability net_admin:on --save

And create the character device file inside the container (execute the following on the host node):

vzctl exec VEID mkdir -p /dev/net
vzctl exec VEID mknod /dev/net/tun c 10 200
vzctl exec VEID chmod 600 /dev/net/tun

Enter cat /dev/net/tun to test whether the TUN/TAP device is available:

• If you receive the message cat: /dev/net/tun: File descriptor in bad state your TUN/TAP device is ready for use.
• If you receive the message cat: /dev/net/tun: No such device the TUN/TAP device was not successfully created.

[root@server1 ~]# iptables -t nat -F
iptables v1.3.5: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

[root@server1 ~]# iptables -t nat -nvL
iptables v1.3.5: can’t initialize iptables table `nat’: Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

You can fix this by using the following commands.

[root@yoshi ~]# vzctl stop 150
[root@yoshi ~]# vzctl set 150 --iptables "iptable_nat iptable_filter iptable_mangle  ip_conntrack ipt_conntrack ipt_REDIRECT ipt_REJECT ipt_multiport  ipt_helper ipt_LOG ipt_state" --save
Saved parameters for VE 150
[root@yoshi ~]# vzctl restart 150
[root@yoshi ~]# vzctl enter 150
[root@server1 ~]# iptables -t nat -nvL
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target     prot opt in     out     source               destination

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target     prot opt in     out     source               destination

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target     prot opt in     out     source               destination

This account is currently locked out because a brute force attempt  was detected. Please wait 10 minutes and try again. Attempting to login again will only increase this delay. If you frequently experience this problem, we recommend having your username changed to something less generic.

Run the following as root in SSH.

mysql cphulkd
mysql> delete from brutes;
mysql> delete from logins;

Shows list of all the VPS’s hosted on the Node.

vzlist -a

To start the VPS

vzctl start VEID

To stop (Shut Down) the VPS

vzctl stop VEID

To view the status of the particular VPS

vzctl status VEID

To stop the VPS quickly and forcefully

vzctl stop VEID --fast

To enter in a particular VPS

vzctl enter VEID

To set the Hostname of a VPS

vzctl set VEID --hostname vps.domain.com --save

To add a new IP to the hosting VPS

vzctl set VEID --ipadd 1.2.3.4 --save

To delete the IP from VPS

vzctl set VEID --ipdel 1.2.3.4 --save

To reset root password of a VPS

vzctl set VEID --userpasswd root:new_password --save

To add the nameserver IP’s to the VPS

vzctl set VEID --nameserver 1.2.3.4 --save

To run any command on a VPS from Node

vzctl exec VEID command

To install any package/Software on a VPS from Node

vzyum VEID install package_name 

**VEID refers to the ID of the Particular VPS**

The session.save_path setting in your php configuration file (php.ini) is not set or is set to a folder which did not exist. You might need to set the save_path setting in php.ini or verify that the folder sets in save_path exist.

It’s a pretty simple fix in the servers php.ini. First thing you need to do is locate your servers copy of the php.ini by running the following command via SSH.

root@lolwut [~]# php -i | grep php.ini
Configuration File (php.ini) Path => /usr/local/lib
Loaded Configuration File => /usr/local/lib/php.ini
root@lolwut [~]#

Once you’ve found the php.ini, use your favorite editor and locate the following line.

root@lolwut [~]# grep ‘session.save_path’ /usr/local/lib/php.ini
; session.save_path = “N;/path”
;session.save_path = /tmp
; (see session.save_path above), then garbage collection does *not*
root@lolwut [~]#

In this case, simply remove “;” which will uncomment the line. If you are missing the “/tmp” part of the line, you will need to add it. Make these changes and save the file, then restart apache and you’re good to go.